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10601por Zhao, Zhengfu, Thibault, Nicolas R., Dahl, Tais W., Schovsbo, Niels H., Sørensen, Aske L., Rasmussen, Christian M. Ø., Nielsen, Arne T.“…Here we report a continuous astronomical signal detected as geochemical variations (1 mm resolution) in the late Cambrian Alum Shale Formation that is used to establish a 16-Myr-long astronomical time scale, anchored by radioisotopic dates. …”
Publicado 2022
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10602por Suh, Myoung-Gyun, Yi, Xu, Lai, Yu-Hung, Leifer, S., Grudinin, Ivan S., Vasisht, G., Martin, Emily C., Fitzgerald, Michael P., Doppmann, G., Wang, J., Mawet, D., Papp, Scott B., Diddams, Scott A., Beichman, C., Vahala, Kerry“…Conventional LFCs require complex filtering steps to be compatible with astronomical spectrographs, but a new chip-based microresonator device, the Kerr soliton microcomb(3–8), is an ideal match for astronomical spectrograph resolution and can eliminate these filtering steps. …”
Publicado 2018
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10603por Hoskin, Michael“…Discoverers of the Universe tells the gripping story of William Herschel, the brilliant, fiercely ambitious, emotionally complex musician and composer who became court astronomer to Britain's King George III, and of William's sister, Caroline, who assisted him in his observations of the night sky and became an accomplished astronomer in her own right. …”
Publicado 2011
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10604“…A high-precision geologic time scale is the essential key for understanding the Earth’s evolutionary history and geologic processes. Astronomical tuning of orbitally forced stratigraphic records to construct high-resolution Astronomical Time Scales (ATS) has led to a progressive refinement of the geologic time scale over the past two decades. …”
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10605“…However, a wide field will cause some spatially variant optical aberrations, which makes it difficult to obtain stellar information accurately from astronomical images. Therefore, we propose a network for restoring wide-field astronomical images by correcting optical aberrations, called ASANet. …”
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10606por Xie, Zongliang, Ma, Haotong, Qi, Bo, Ren, Ge, He, Xiaojun, Dong, Li, Tan, Yufeng, Qiao, Shan“…The next generation of optical sparse aperture systems will provide high angular resolution for astronomical observations. Spatial modulation diversity (SMD) is a newly developed post-processing technique for such telescopes, faced with challenges of imaging faint objects, which are very attractive for astronomers but always make raw diversity images suffer serious photon noise. …”
Publicado 2017
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10607por CERN. Geneva“…--HTML-->Comité de Liaison Enseignants et Astronomes…”
Publicado 2015
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10608por Freedman, W L“…Article describing how astronomers estimate the age of the Universe (2 pages).…”
Publicado 2003
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10609“…As such, this monograph includes all used wavelengths, from radio to gamma, the FERMI telescope, a history and theory refresher, and jets from gamma ray bursts. For astronomers, nuclear physicists, and plasmaphysicists.…”
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10610Publicado 2003“…"Astronomers have discovered a star in the constellation Cassiopeia that will explode in the near future" (1/2 page).…”
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10611“…The presented analysis can hopefully be applicable to understand the cylindrical acoustic wave dynamics leading actively to the formation of astrophysical gyromagnetic (filamentary) structures in diverse astronomical circumstances in both the classical and quantum regimes of astronomical relevance.…”
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10612por Stén, Johan C -E“…The Finnish mathematician and astronomer Anders Johan Lexell (1740–1784) was a long-time close collaborator as well as the academic successor of Leonhard Euler at the Imperial Academy of Sciences in Saint Petersburg. …”
Publicado 2014
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10613por Kimura, Yuki, Tanaka, Kyoko K., Nozawa, Takaya, Takeuchi, Shinsuke, Inatomi, Yuko“…The abundant forms in which the major elements in the universe exist have been determined from numerous astronomical observations and meteoritic analyses. Iron (Fe) is an exception, in that only depletion of gaseous Fe has been detected in the interstellar medium, suggesting that Fe is condensed into a solid, possibly the astronomically invisible metal. …”
Publicado 2017
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10614por Li, Mingsong, Bralower, Timothy J., Kump, Lee R., Self-Trail, Jean M., Zachos, James C., Rush, William D., Robinson, Marci M.“…Statistical evaluation of variations in calcium content and magnetic susceptibility indicates astronomical forcing was involved and the PETM onset lasted about 6 kyr. …”
Publicado 2022
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10615por Narlikar, Jayant V“…Birla award, the Prix Janssen of the French Astronomical Society and an Associate of the Royal Astronomical Society of London. …”
Publicado 2015
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10616por Rudnicki, Konrad“…In this concise account of modern cosmology, Konrad Rudnicki introduces the ordinary reader to the philosophical foundations of cosmological research and analyzes current astronomical concepts of time and space.…”
Publicado 1991
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10617por Pauli, Wolfgang“…He makes some remarks concerning Kepler's astrological ideas.…”
Publicado 2001
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10618por Rull, Valentí“…Reliable predictions of long‐term ecological and evolutionary processes require more information than the periodicity of the astronomical forces that drive them.[Image: see text]…”
Publicado 2022
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10619
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10620por Fauber, L S“…A vivid narrative that connects the lives of four great astronomers as they discovered, refined, and popularized the first majorscientific discovery of the modern era: that the Earth moves around the Sun.…”
Publicado 2019
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